Round

using System;

class MainClass {
    static void Main() {
        var values = new[] { 1.85, 1.5, 1.35, 0.5, 0.35 };
        Console.WriteLine("value\trounded value");
        
        foreach (var value in values) {
            var rvalue = (int)Math.Round(value, MidpointRounding.AwayFromZero);
            Console.WriteLine("{0}\t{1}", value, rvalue);
        }
    }
}